The straightforward functionalization of sterically demanding α,α-disubstituted double bonds of the natural products β-pinene and limonene via cross metathesis with symmetrical internal olefins is described. The reaction is catalyzed by Hoveyda-Grubbs type ruthenium catalysts in dimethyl carbonate as green solvent and makes possible the clean introduction of ester and nitrile groups in one step without
描述了
天然产物β-pine烯和li烯通过与对称内部烯烃的交叉复分解而直接进行的空间要求性α,α-二取代双键的官能化。该反应由Hoveyda-Grubbs型
钌催化剂在
碳酸二甲酯中作为绿色溶剂催化,使一步纯化酯和腈基的引入成为可能,而不会形成副产物。